NFKBIA and Parkinson disease: In order to confirm the mechanism of EriB’s inhibiting the activation of microglia, we detected the expression style of p65, phosphorylated-p65 and IκBα with or without EriB and MPTP treatment, Western-blot analysis showed that IκBα protein level decreased and p-p65 protein level increased with MPTP stimulation only, however, EriB inhibited the increase of p-p65 expression caused by the decrease of IκBα expression in PD model.